| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 106 |
22.3%
|
| 2 | Monthly | 118 |
24.8%
|
| 3 | Less than once a month | 231 |
48.5%
|
| 4 | Never | 17 |
3.6%
|
| 5 | Don't know | 4 |
0.8%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 524 |